1. Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; Assistant Professor, Dept. of Civil Engineering, Thangal Kunju Musaliar College of Engineering, Kollam, Kerala 691004, India.
2. Associate Professor, Dept. of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India (corresponding author).